My point is that whether or not something has value is not what determines whether or not it's an object. A working computer and a broken computer are both objects. To you, a sex partner and a vibrator are both objects, what determines value would be whether the tool serves a useful purpose.
Back to the conversation about dominance, it's an interesting study of perspective. It's possible that you would view your partner as an object you can use to obtain pleasure, while your partner views you as an object with buttons to push in order to cause a reaction. So, as a matter of idle curiosity, do you believe that objectification is inherently a form of domination?